Radeon RX 6900 XT vs Radeon VII

Intro

Compare all of that to the Radeon VII, which comes with clock speeds of 1400 MHz on the GPU, and 1000 MHz on the 16384 MB of HBM2 memory. It features 3840 SPUs as well as 240 TAUs and 64 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon VII		295 Watts
Radeon RX 6900 XT		300 Watts
	Difference: 5 Watts (2%)

Memory Bandwidth

Performance-wise, the Radeon VII should in theory be a lot superior to the Radeon RX 6900 XT in general. (explain)

Radeon VII		1048576 MB/sec
Radeon RX 6900 XT		524288 MB/sec
	Difference: 524288 (100%)

Texel Rate

The Radeon RX 6900 XT should be much (approximately 74%) more effective at texture filtering than the Radeon VII. (explain)

Radeon RX 6900 XT		584000 Mtexels/sec
Radeon VII		336000 Mtexels/sec
	Difference: 248000 (74%)

Pixel Rate

If using high levels of AA is important to you, then the Radeon RX 6900 XT is superior to the Radeon VII, by a large margin. (explain)

Radeon RX 6900 XT		233600 Mpixels/sec
Radeon VII		89600 Mpixels/sec
	Difference: 144000 (161%)

Please note that the above 'benchmarks' are all just theoretical - the results were calculated based on the card's specifications, and real-world performance may (and probably will) vary at least a bit.

Price Comparison

Specifications

Memory Bandwidth: Memory bandwidth is the maximum amount of information (in units of MB per second) that can be transported over the external memory interface in a second. The number is worked out by multiplying the interface width by the speed of its memory. If the card has DDR RAM, the result should be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The higher the memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that are processed in one second. This is worked out by multiplying the total amount of texture units by the core clock speed of the chip. The higher this number, the better the card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in one second.

Pixel Rate: Pixel rate is the maximum number of pixels the video card can possibly record to the local memory per second - measured in millions of pixels per second. The number is calculated by multiplying the amount of Render Output Units by the the core speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill rate is also dependant on many other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to reach the maximum fill rate.